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LCD TVs - LED

change channel

Ruben Costilla
hace 5 años
hace 5 años
I have a TV noblex 42 ld 870 fim The fault is the following lights well with the power button either in the control or with the panel I have image and sound but when I touch any button I switch to change the channel and it doesn't stop and disconnect the panel and take the battery out of the control and does not stop
johnnyalfredotecnico
hace 5 años
hace 5 años
Friend, I had a similar fault with a lg led tv, but when I turned it on I started to change the channel only ... And it stopped after a couple of minutes When I opened it, I found 4 swollen capacitors at the source, I changed them and the problem was solved, I hope it helps you with something
Ruben Costilla
hace 5 años

as I said if I turn it on and leave it on the channel that I start it works fine
the problem starts when I touch any button on both the panel and the control

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Fernando Barillas Corona
hace 5 años
hace 5 años
Greetings Ruben, well look you should check and disassemble the card where the remote sensor and / or buttons on your TV comes and see if it is not sulfated, check welds and operation of buttons that are not altered in resistance and cleanliness, I hope that with this be solved or if necessary change it, luck and value.
Ruben Costilla
hace 5 años

already disconnect the key panel and if I touch any key on the remote control it changes channels and does not stop

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Ruben Costilla
hace 5 años

I already solved the problem, good medium, I solved it, but it works
Checking the key panel I see that it has two lines comparing a tester I discover that one of the lines
had a lower resistance than the other is KEY 2 that controls ch- v- and source
Following the form I arrive at the micro
The solution I gave him was to take a 10-hom resistor marked with the number R416. This resistance goes to 3.3 v and disconnects it and is perfect but does not control V-ch- or source with the panel but with the control if

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Fernando Barillas Corona
hace 5 años

Well, it was good that you solved it, if you like to value the assistance although it was not quite accurate, it is up to your consideration, but good tip for the companions that of the resistance saves headaches, although it is not 100% but it works, luck and greetings.

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Ruben Costilla
hace 5 años

the qualification for Fernando Bari was because I guide him to look for the panel

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